What is GFCI ?
Unlike ordinary outlets and circuit breakers designed to protect your home’s electrical system, GFCI outlets, or “ground fault circuit interrupters”, are designed to protect people from electrical shock. GFCI outlets are easily identified by the “test” and “reset” buttons on the front side.
GFCI outlets reduce the risk of electrical fires and prevent serious electrical shocks by controlling electrical current, cutting off power or tripping when the outlets detect an imbalance or excess current in an unintended path. Super sensitive and with a much faster response time than circuit breakers or fuses, they react in as little as one-thirtieth of a second, before the electricity affects your heart rate.
Different type of GFCI
There are several types of GFCIs available, depending on construction application:
How it works
Unlike the fuse in a house, the GFCI is built into the socket itself. When you plug in an appliance, such as a hair dryer, the GFCI outlet controls the amount of current flowing to the appliance. If you accidentally drop the appliance into a sink full of water, the GFCI detects the interruption in power and shuts off the supply, which can save your life.